Convert to python module named autogpt.

Also fixed the Dockerfile.
Converting to module makes development easier.
Fixes coverage script in CI and test imports.

autogpt/utils.py

@@ -0,0 +1,23 @@
+import yaml
+from colorama import Fore
+
+
+def clean_input(prompt: str=''):
+    try:
+        return input(prompt)
+    except KeyboardInterrupt:
+        print("You interrupted Auto-GPT")
+        print("Quitting...")
+        exit(0)
+
+
+def validate_yaml_file(file: str):
+    try:
+        with open(file) as file:
+            yaml.load(file, Loader=yaml.FullLoader)
+    except FileNotFoundError:
+        return (False, f"The file {Fore.CYAN}`{file}`{Fore.RESET} wasn't found")
+    except yaml.YAMLError as e:
+        return (False, f"There was an issue while trying to read with your AI Settings file: {e}")
+
+    return (True, f"Successfully validated {Fore.CYAN}`{file}`{Fore.RESET}!")